The Molex Dynamic D-5200 2-917542-2 is a single-row, 4-position shrouded header built for board-to-cable/wire power distribution. It sits in the D-5200 series, which is the high-current branch of the Dynamic family — the 10.16 mm pitch and 30 A per circuit rating put it squarely in the power interconnect class, not signal. Typical applications are industrial control cabinets, power supplies, and general-purpose equipment where a rugged, high-current wire-to-board connection is needed.
30 A per circuit at 630 V is bus-level current — each contact is sized to carry the main DC rail or an AC power feed, not a control signal. The 10.16 mm pitch gives generous creepage for that 630 V rating without forcing an oversized board footprint; you get the voltage clearance in a single-row layout that still fits a standard 0.400-inch grid. The board lock adds mechanical retention during wave soldering and resists the lever force of a stiff cable bundle pulling on the mated housing.
This is the through-hole solder header half of a wire-to-board pair. It mates with the matching Dynamic D-5200 receptacle housing (order code 1-917545-x) that accepts the crimp terminals. The detent lock provides audible confirmation when fully seated. The through-hole solder tails are 0.150" (3.81 mm) long — standard for a 1.6 mm PCB. The four-wall shrouding prevents the receptacle from being inserted upside down or misaligned.